Study Finds Some Seriously Unsettling Ingredients In Hot Dogs There's nothing we love more in the summer, at a tailgate, or in a ball park than a juicy hot dog. It's America's street food, after all. So Italy, you can have your gelato because we've got meat between buns ... or do we? According to an alarming study from Clear Food, that hot dog you're eating might contain some unwelcome ingredients. Read on at your own risk. While hot dogs have often provoked anxiety and sparked debate about exactly what's in them, it hasn't stopped the majority of Americans from dumping on the ketchup/mustard/relish/etc. and chowing down. But apparently, those anxieties were well warranted. Clear Food, a company whose mission is to analyze foods at a molecular level and provide a reliable guide for commonly consumed foods, analyzed 345 hot dogs and sausages from 75 different brands sold at ten popular retailers. And the results were upsetting. The study showed that 14.4% of the hot dogs analyzed contained either substitution or hygienic issues. Substitutions included an absence of ingredients listed on the label, as well as an inclusion of meats not disclosed on the label. This is particularly troublesome where pork is involved (3% of hot dogs contained pork not listed as an ingredient), as many people cannot eat pork for religious reasons. Also—10% of vegetarian products contained meat. I know, you're feeling totally played right now. But it gets worse. Then we get to the hygienic issues. Get ready for this one—2% of all hot dogs contained human DNA. HUMAN DNA, Y'ALL. I don't care how small that percentage is, it's 2% too high for my comfort-zone. Ready to swear off hot dogs for good? No worries, because Clear Food also gave us a list of the brands that scored the highest for quality. The top five include Butterball, McCormick, Eckrich, Hebrew National, and Simply Balanced.